Quote:
Originally Posted by Longwong
Someone eluded to this in another thread. Research showed me (in addition to wrecking o2 sensors for some reason) that this oil is actually a much thinner oil than the 10w60 (even more than the numbers suggest). Meaning the fuel pump may not be able to get the fuel pressure up as high as it needs to be and negatively impact the wear on our cars.
Anyone running this? Why and some details
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It is thinner. I was the one who brought that point up:
M1R 0w50 HTHS = 3.8 (coincidentally the same HTHS as M1 0w40)
TWS HTHS = 5.2
That means the operational viscosity of TWS is some 36% heavier!
And yes, if you can't get sufficient oil pressure, you run in bypass mode for too long. That's bad. But going too thick means that the oil pump is working quite hard to force that stuff around, which robs you of horsepower. It also means the oil temps rise and
stay elevated.
As I've said repeatedly, "as thin as possible but as thick as necessary." You need to use an oil pressure gauge to check if the oil is the correct viscosity.